# VR Assembly Basics The **VR Assembly System** in SimLab Composer provides an intuitive, code-free framework to design step-by-step 3D disassembly and reassembly procedures for Virtual Reality and interactive 3D desktop environments. By using a visual node graph, you can map out exact mechanical assembly sequences, enforce part dependencies, and build realistic interactive training scenarios where certain bolts, covers, and retainers must be removed in a strict, realistic order. ## Core Features & Capabilities - **Node-Based Sequence Control:** Define precise procedural order using a simple left-to-right flow diagram. - **Component Types & Interchangeable Parts:** Define identical items (such as short/long bolts or standard washers) into groups so users can place them back into any matching hole during reassembly. - **Tool Assignment & Animations:** Require specific tools (such as wrenches, hex keys, or torque drivers) to loosen or tighten components, complete with keyframed action animations and ratchet sound effects. - **Ghosting & Placement Feedback:** Set visual ghost transparency indicators and audio cues for valid or invalid part placements. - **Training Builder Integration:** Trigger custom 2D text notifications, audio instructions, or UI popups upon component disassembly. ## Video Tutorial Watch the SimLab VR assembly basics tutorial: